I have a sofa right up against the wall. The HT area will be roughly 15" x 15". One side is wall, the other open. If you're facing the sofa, there's a small window to the left of it. My dilemma is whether to go with ceiling or in-wall. Satellites are not an option as the only place I could put it would be right in front of the window. Not my first choice. Which route should I go? Also, will electrical wires cause an interference w/ the speakers? Thanks for your help!